Road Sensing SuspensionThe Road Sensing Suspension (RSS) feature providessuperior vehicle ride and handling under a variety ofpassenger and loading conditions.The system is fully automatic and uses a computercontroller to continuously monitor vehicle speed, wheelto body position, lift/dive and steering position of thevehicle. The controller then sends signals to each shockabsorber to independently adjust the damping level toprovide the optimum vehicle ride.RSS also interacts with the tow/haul mode that, whenengaged, will provide additional control of the shockabsorbers. This additional control results in better rideand handling characteristics when the vehicle isloaded or towing a trailer. See “Tow/Haul Mode” underTowing a Trailer on page 4-44.StabiliTrak ® SystemYour vehicle may have the StabiliTrak® system whichcombines antilock brake, traction and stability controlsystems and helps the driver maintain directional controlof the vehicle in most driving conditions.When you first start your vehicle and begin to driveaway, the system performs several diagnostic checks toensure there are no problems. You may hear or feelthe system working. This is normal and does not meanthere is a problem with your vehicle. The systemshould initialize before the vehicle reaches 20 mph(32 km/h). In some cases, it may take approximatelytwo miles of driving before the system initializes.If the system fails to turn on or activate, the StabiliTrak®light along with one of the following messages will bedisplayed on the Driver Information Center (DIC):TRACTION CONTROL OFF, SERVICE TRACTIONCONTROL, STABILITRAK OFF, SERVICESTABILITRAK. If these DIC messages appear, makesure the StabiliTrak® system has not been turnedoff using the StabiliTrak® on/off button. Then turn thesteering wheel clockwise from the nine o’clock positionto the three o’clock position. If this clears themessage(s), your vehicle does not need servicing. If thisdoes not clear the message(s), then turn the vehicleoff, wait 15 seconds, and then turn it back on again toreset the system. If any of these messages still appearon the Driver Information Center (DIC), your vehicleshould be taken in for service. For more information onthe DIC messages, see Driver Information Center (DIC)on page 3-48.4-6
